Update ruby/setup-ruby action to v1.260.0 (#669)

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This PR contains the following updates:

| Package | Type | Update | Change | Pending |
|---|---|---|---|---|
| [ruby/setup-ruby](https://redirect.github.com/ruby/setup-ruby) |
action | minor | `v1.259.0` -> `v1.260.0` | `v1.263.0` (+2) |

---

### Release Notes

<details>
<summary>ruby/setup-ruby (ruby/setup-ruby)</summary>

###
[`v1.260.0`](https://redirect.github.com/ruby/setup-ruby/releases/tag/v1.260.0)

[Compare
Source](https://redirect.github.com/ruby/setup-ruby/compare/v1.259.0...v1.260.0)

#### What's Changed

- Revert "feat: upgrade to node 24" by
[@&#8203;eregon](https://redirect.github.com/eregon) in
[#&#8203;808](https://redirect.github.com/ruby/setup-ruby/pull/808)
- Reinstate testing against jruby 9.4 and head by
[@&#8203;chadlwilson](https://redirect.github.com/chadlwilson) in
[#&#8203;807](https://redirect.github.com/ruby/setup-ruby/pull/807)

#### New Contributors

- [@&#8203;chadlwilson](https://redirect.github.com/chadlwilson) made
their first contribution in
[#&#8203;807](https://redirect.github.com/ruby/setup-ruby/pull/807)

**Full Changelog**:
<ruby/setup-ruby@v1.259.0...v1.260.0>

</details>

---

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---

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---

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.github/workflows/deploy-doc.yml

@@ -17,7 +17,7 @@ jobs:
       issues: write
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: ruby/setup-ruby@866b91cc020931c510d42e43e498a7f07d335f60 # v1.259.0
+      - uses: ruby/setup-ruby@1dc795682739d28740ac76bf40227b89f2ab602a # v1.260.0
         with:
           ruby-version: '3.4'
       - run: bundle install

.github/workflows/publish.yml

@@ -20,7 +20,7 @@ jobs:
 
     steps:
       - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
-      - uses: ruby/setup-ruby@866b91cc020931c510d42e43e498a7f07d335f60 # v1.259.0
+      - uses: ruby/setup-ruby@1dc795682739d28740ac76bf40227b89f2ab602a # v1.260.0
         with:
           bundler-cache: true
           ruby-version: 3.3

.github/workflows/pull_request.yml

@@ -23,7 +23,7 @@ jobs:
     - uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       with:
         submodules: true
-    - uses: ruby/setup-ruby@866b91cc020931c510d42e43e498a7f07d335f60 # v1.259.0
+    - uses: ruby/setup-ruby@1dc795682739d28740ac76bf40227b89f2ab602a # v1.260.0
       with:
         ruby-version: ${{ matrix.ruby }}
     - uses: actions/setup-java@dded0888837ed1f317902acf8a20df0ad188d165 # v5.0.0